/* ميلاد — حاسبة العمر | teal theme, RTL, responsive */
:root{
  --teal:#0d9488;--teal-d:#0f766e;--teal-l:#14b8a6;--teal-xl:#5eead4;
  --mint:#f0fdfa;--mint2:#ccfbf1;
  --ink:#0f172a;--body:#334155;--muted:#64748b;--line:#e2e8f0;
  --bg:#f8fafc;--card:#ffffff;--gold:#f59e0b;
  --shadow:0 4px 6px -1px rgba(0,0,0,.06),0 2px 4px -2px rgba(0,0,0,.05);
  --shadow-lg:0 12px 28px -6px rgba(13,148,136,.18);
  --radius:16px;--maxw:1080px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Tajawal','Cairo',system-ui,Arial,sans-serif;background:var(--bg);color:var(--body);line-height:1.85;direction:rtl;-webkit-font-smoothing:antialiased}
a{color:var(--teal-d);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto}
.container{max-width:var(--maxw);margin:0 auto;padding:0 18px}
h1,h2,h3,h4{color:var(--ink);line-height:1.4;font-weight:800}

/* Header */
.site-header{background:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50;box-shadow:var(--shadow)}
.nav{display:flex;align-items:center;justify-content:space-between;height:66px;gap:12px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.5rem;color:var(--teal-d)}
.brand .logo{width:40px;height:40px;border-radius:12px;background:linear-gradient(135deg,var(--teal),var(--teal-l));display:grid;place-items:center;color:#fff;font-size:1.2rem;box-shadow:var(--shadow-lg)}
.brand small{display:block;font-size:.62rem;color:var(--muted);font-weight:500;margin-top:-3px}
.menu{display:flex;align-items:center;gap:6px;list-style:none;flex-wrap:wrap}
.menu a{color:var(--body);padding:8px 12px;border-radius:10px;font-weight:600;font-size:.92rem;transition:.15s}
.menu a:hover{background:var(--mint);color:var(--teal-d);text-decoration:none}
.menu a.active{background:var(--teal);color:#fff}
.burger{display:none;background:none;border:0;font-size:1.6rem;color:var(--teal-d);cursor:pointer}
@media(max-width:820px){
  .burger{display:block}
  .menu{position:absolute;top:66px;right:0;left:0;background:var(--card);flex-direction:column;align-items:stretch;padding:10px;gap:4px;border-bottom:1px solid var(--line);box-shadow:var(--shadow);display:none}
  .menu.open{display:flex}
  .menu a{padding:12px}
}

/* Hero */
.hero{background:linear-gradient(160deg,var(--teal-d),var(--teal) 55%,var(--teal-l));color:#fff;padding:38px 0 30px;text-align:center}
.hero h1{color:#fff;font-size:1.85rem;margin-bottom:8px}
.hero p{color:#d1faf4;max-width:680px;margin:0 auto;font-size:1.02rem}
@media(max-width:600px){.hero h1{font-size:1.4rem}}

/* Calculator card */
.calc-wrap{max-width:760px;margin:-28px auto 0;position:relative;z-index:5}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-lg);padding:22px}
.tabs{display:flex;gap:8px;background:var(--mint);padding:6px;border-radius:12px;margin-bottom:18px}
.tab{flex:1;text-align:center;padding:11px;border:0;background:none;font-family:inherit;font-weight:700;font-size:.98rem;color:var(--muted);border-radius:9px;cursor:pointer;transition:.15s}
.tab.active{background:var(--teal);color:#fff;box-shadow:var(--shadow)}
.field-row{display:grid;grid-template-columns:1fr 1fr 1fr;gap:12px}
.field{display:flex;flex-direction:column;gap:6px}
.field label{font-weight:700;font-size:.86rem;color:var(--ink)}
.field select{padding:12px;border:1.5px solid var(--line);border-radius:11px;font-family:inherit;font-size:1rem;background:#fff;color:var(--ink);cursor:pointer;transition:.15s}
.field select:focus{outline:none;border-color:var(--teal-l);box-shadow:0 0 0 3px var(--mint2)}
.person-block{border:1.5px dashed var(--line);border-radius:12px;padding:14px;margin-bottom:14px}
.person-block h4{margin-bottom:10px;color:var(--teal-d)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:linear-gradient(135deg,var(--teal),var(--teal-l));color:#fff;border:0;border-radius:12px;padding:14px 22px;font-family:inherit;font-weight:800;font-size:1.08rem;cursor:pointer;width:100%;margin-top:16px;transition:.15s;box-shadow:var(--shadow-lg)}
.btn:hover{filter:brightness(1.06);transform:translateY(-1px)}
.btn.secondary{background:#fff;color:var(--teal-d);border:1.5px solid var(--teal-l);box-shadow:none}
.err{background:#fef2f2;color:#b91c1c;border:1px solid #fecaca;border-radius:10px;padding:10px 14px;margin-top:12px;font-weight:600;display:none}
.err.show{display:block}

/* Results */
.results{margin-top:20px;display:none}
.results.show{display:block;animation:fade .35s ease}
@keyframes fade{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.age-big{text-align:center;background:linear-gradient(160deg,var(--mint),#fff);border:1px solid var(--mint2);border-radius:14px;padding:20px;margin-bottom:16px}
.age-big .lbl{color:var(--muted);font-weight:600;margin-bottom:4px}
.age-big .val{font-size:2.4rem;font-weight:800;color:var(--teal-d)}
.age-big .val span{font-size:1rem;color:var(--body);font-weight:600}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px}
.stat{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px;text-align:center}
.stat .n{font-size:1.4rem;font-weight:800;color:var(--teal-d);word-break:break-word}
.stat .t{font-size:.82rem;color:var(--muted);font-weight:600;margin-top:2px}
.section-title{margin:22px 0 10px;font-size:1.05rem;color:var(--ink);display:flex;align-items:center;gap:8px}
.section-title::before{content:"";width:5px;height:20px;background:var(--teal-l);border-radius:3px}
.live{background:var(--teal-d);color:#fff;border-radius:12px;padding:16px;text-align:center;margin-bottom:16px}
.live .n{font-size:1.7rem;font-weight:800;font-variant-numeric:tabular-nums}
.live .t{color:var(--teal-xl);font-size:.85rem}
.insight{background:#fffbeb;border:1px solid #fde68a;border-radius:12px;padding:16px;line-height:1.9}
.insight h4{color:#b45309;margin-bottom:6px}
.insight ul{margin:6px 22px}
.chip{display:inline-block;background:var(--mint2);color:var(--teal-d);padding:4px 12px;border-radius:20px;font-weight:700;font-size:.85rem;margin:2px}

/* Content sections */
.content{padding:34px 0}
.content .card{padding:26px}
.prose{max-width:820px;margin:0 auto}
.prose h2{font-size:1.4rem;margin:26px 0 10px}
.prose h3{font-size:1.12rem;margin:20px 0 8px;color:var(--teal-d)}
.prose p{margin:10px 0}
.prose ul,.prose ol{margin:10px 26px}
.prose li{margin:6px 0}
.prose a{font-weight:600}
.steps{counter-reset:s;list-style:none;margin:12px 0!important}
.steps li{position:relative;padding:8px 44px 8px 8px;margin:8px 0;background:var(--mint);border-radius:10px}
.steps li::before{counter-increment:s;content:counter(s);position:absolute;right:8px;top:8px;width:26px;height:26px;background:var(--teal);color:#fff;border-radius:50%;display:grid;place-items:center;font-weight:800;font-size:.85rem}

/* Tool grid / links */
.tool-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px;margin:16px 0}
.tool-card{display:block;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px;transition:.18s}
.tool-card:hover{border-color:var(--teal-l);box-shadow:var(--shadow-lg);transform:translateY(-2px);text-decoration:none}
.tool-card .ic{width:44px;height:44px;border-radius:12px;background:var(--mint);display:grid;place-items:center;font-size:1.3rem;margin-bottom:10px}
.tool-card h3{font-size:1.05rem;color:var(--ink);margin-bottom:4px}
.tool-card p{font-size:.88rem;color:var(--muted)}
.year-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:8px;margin:16px 0}
.year-grid a{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:10px;text-align:center;font-weight:600;font-size:.9rem;color:var(--body);transition:.15s}
.year-grid a:hover{background:var(--teal);color:#fff;text-decoration:none;border-color:var(--teal)}

/* FAQ */
.faq{margin:14px 0}
.faq details{background:var(--card);border:1px solid var(--line);border-radius:12px;margin:8px 0;padding:0 16px;transition:.15s}
.faq details[open]{border-color:var(--teal-l);box-shadow:var(--shadow)}
.faq summary{cursor:pointer;font-weight:700;color:var(--ink);padding:14px 0;list-style:none;position:relative;padding-left:28px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{content:"+";position:absolute;left:0;top:12px;width:22px;height:22px;background:var(--mint);color:var(--teal-d);border-radius:6px;display:grid;place-items:center;font-weight:800}
.faq details[open] summary::before{content:"\2212"}
.faq details p{padding:0 0 14px;color:var(--body)}

/* ad slot */
.ad{margin:22px auto;text-align:center;min-height:90px;background:repeating-linear-gradient(45deg,#f1f5f9,#f1f5f9 10px,#f8fafc 10px,#f8fafc 20px);border:1px dashed var(--line);border-radius:12px;display:grid;place-items:center;color:var(--muted);font-size:.8rem;max-width:970px}

/* Article cards */
.art-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px;margin:18px 0}
.art-card{background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:.18s;display:flex;flex-direction:column}
.art-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px)}
.art-card .thumb{height:120px;background:linear-gradient(135deg,var(--teal),var(--teal-l));display:grid;place-items:center;font-size:2.4rem;color:#fff}
.art-card .body{padding:16px}
.art-card .cat{font-size:.75rem;color:var(--teal);font-weight:700}
.art-card h3{font-size:1.05rem;margin:4px 0 6px}
.art-card p{font-size:.88rem;color:var(--muted)}

/* breadcrumb */
.crumb{font-size:.85rem;color:var(--muted);padding:14px 0}
.crumb a{color:var(--teal-d)}

/* Footer */
.site-footer{background:var(--ink);color:#cbd5e1;margin-top:40px;padding:34px 0 18px}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:26px}
.site-footer h4{color:#fff;margin-bottom:12px;font-size:1rem}
.site-footer a{color:#cbd5e1;display:block;padding:4px 0;font-size:.92rem}
.site-footer a:hover{color:var(--teal-xl)}
.foot-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:1.3rem;margin-bottom:10px}
.foot-brand .logo{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--teal),var(--teal-l));display:grid;place-items:center}
.social{display:flex;gap:10px;margin-top:12px}
.social a{width:36px;height:36px;border-radius:9px;background:rgba(255,255,255,.08);display:grid;place-items:center;padding:0}
.social a:hover{background:var(--teal)}
.copy{text-align:center;border-top:1px solid rgba(255,255,255,.1);margin-top:22px;padding-top:16px;font-size:.85rem;color:#94a3b8}
@media(max-width:700px){.foot-grid{grid-template-columns:1fr;gap:18px}.field-row{gap:8px}}